Dump vehicle body mounting



Nov. 26, 1940. s. F. ARMINGTON DUMP VEHICLE BODY MOUNTING Filed June 24, 1959 l w b In FIG-2 g I9 INVENTOR.

, STEWART F. ARMINGTON T ORNEYS Patented Nov. 26, 1940 DUMP VEHICLE BODY MUUNTING Stewart F. Armington, Willoughby, Ohio, assignor to The Euclid Road Machinery Euclid, Ohio, a corporation of Ohio Company,

Application June 24, 1939, Serial No. 280,945

3 Claims.

This invention relates to a dump vehicle body mounting of an improved type wherein a large portion-f the Weight in the body itself is sprung by supporting the same on a resilient material which at the same time forms a part of the bearing upon which the body is pivotally mounted for dumping action.

The invention comprises the mounting of the dumping end of a Vehicle dump body in bearings comprising a rubber cushion which acts as spring means supporting a portion of the dump body load on the chassis and at the same time providing a portion of a novel bearing for the pivotal movement of the dumping action of the body with the attendant advantages set forth in the accompanying specification and claims.

Another object of the invention is the provision of a resilient bearing means at the body dumping pivot which provides novel effects in the supporting of the body load during transportation and dumping with important effects acting vertically and sometimes laterally on the resilient material.

In the drawing, Fig. 1 is a somewhat conventionalized side elevation of a rear dump vehicle in which the invention is incorporated; Fig. 2 is an enlarged View partly in plan and partly in section taken substantially along the line 22 of Fig. 1; Fig. 3 is a still further enlarged transverse vertical section through one of the bearing pivots; while Fig. 4 is a view like Fig. 3 showing a modification.

In the drawing, It represents generally the chassis of a vehicle of automotive type and H represents generally a load container body of bathtub shape suitable for handling earth or like materials. Rigidly mounted at the rear end of the chassis It is a'pair of brackets l2, one at each side of the vehicle, each terminating at its upper end in half of a bearing sleeve or support l3. A

cap l4 suitably secured in position by bolts forms the other half of the sleeve. A pin [5 is nonrotatably mounted in a suitable portion Ila of the framework of the dump body II as best indicated in Figs. 2 and 4. This'pin. has. a cylindrical portion l5a at each end passing centrally through the sleeve I3, I 4. Between each pin portion I5a and its associated supporting sleeve is a bushing or annular cushion it of resilient material, such as live rubber. Inasmuch 'as rotation of the body occurs about the pin or shaft I5, and the rubber cushion It will not stand much wear, I provide metallic bushings I! which are in direct engagement with the pin portions I5a and rotate thereon. The cushion I6 fills the annular space between the outside diameter of each bushing i1 and the inside diameter of the supporting sleeve i3, 14. The parts are so proportioned that when cap i l is bolted to the part l3, then the cushion i6 is compressed so that it tightly embraces the bushing 11. Thus, during a dumping operation, all relative rotation occurs between the bushing H and pin or shaft l5, and no relative' rotation occurs between bushing l1 and the cushion l6. 10

In the form shown in Fig. 3, washers l8 are mounted on bushing ll abutting the ends of cushion H3. These washers extend to positions alongside the lateral edges of the sleeve 13, M with little more clearance than is sufiicient to 5 permit free vertical movement between'the body and chassis such as is made possible by the rubber cushion l6.

As shown in the modification of Fig. 4, I may combine the mounting of the rubber cushion I6 20 with the body connection so as to compensate for side sway or lateral movement of the body relative to the chassis. For this purpose the ends lBa of the rubber cushion are formed in frusto-conical shape and abut against washers IS on shaft 5 I5. The inner washer l9 abuts directly against the beam structure Ila of the body II and the outer washer l9 abuts against a collar 20 which is rigidly fixed to the shaft l5 as by the securing means 21. The washers I!) are of less radius than 30 the washers l8 so as to clear the sleeve l3, I4. It results from this construction that side play of the body II in either direction is resiliently resisted by the end portions Ilia of the cushion i6 where these portions abut the washers I 9. 5 I I have thus provided a resilient bearing means which acts as a load supporting means in the nature of a vertical spring; which also may act resiliently to resist side' sway of the body; which forms a portion of the pivotal bearing about 40 which the load dumps; and which reduces shock in the dumping operation.

What I claim is:

1. In a vehicle having a chassis unit and a dump body unit carried thereby means mounting 45 said body unit on said chassis unit for springing and for dumping comprising a pin carried by one of said units, a sleeve carried by the other of said units, the interior diameter of said sleeve being greater than the exterior diameter of said pin, a 50 metal bushing in bearing contact with said pin, and a resilient annular cushion which when unstressed has a greater radial dimension than the distance between the exterior of said pin and the interior of said sleeve, said cushion when as- 55 sembled being compressed between said metal bushing and said sleeve, whereby the load is transmitted from said pin to said sleeve and relative rotation occurs between said metal bushing and pin without relative rotation between said resilient cushion and the part on either side thereof.

2. In a Vehicle having a chassis unit and a dump body unit carried thereby, means supporting said body unit on said chassis unit comprising a pin extending transversely of one of said units, sleeve supports alined transversely of the other of said units and surrounding portions of said pin, resilient cushions between said supports and pin, and abutments rigid with said pin bearing directly against the lateral faces of said cushions.

3. In a vehicle having a chassis unit and a dump body unit carried thereby, means supporting said body unit on said chassis unit comprising a pin member mounted on one of said units, a sleeve member mounted on the other of said units and surrounding said pin member, a resilient cushion between said pin and sleeve members, and an abutment rigidly movable with one of said members and bearing directly against a lateral face of said cushion and having clearance from the other of said members, whereby said cushion resiliently resists relative vertical and lateral motion between the units.

STEWART F. ARNIINGTON. 

